Ovettb boynton



No. 73,495. l MTBNTBD JAN. 21,1868.

' 0. BOYNTON,

'LAMP.

uitrit tette strut @ffies OVETTE BOYNTON, 0F HINESBURG, VERM ONT.

i Letters Patent No. 73,495, dated January 2l, 1868.

IMPROVEMENT IN LAMPS.

bt 'Lngcttlt tefrrret in in this: tttrrt @anni mit making um nf its stmt.-

TO ALL WHOM IT MAY CONCERN:

Be it known that I, Ovt-TETE BOYNTON, of IIinesbnrg` in the county of Chittenden, and State f Vermont, have invented nep and ds'eful Improvements in Lamps and Burners; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon. n

The nature ofmy invention consists in interposing between the fiume of the burner and the lampv or oilrcscrvoir, :tf-chamber containing water or other non-conductor of heat, which will prevent the passage of bent` from the dame of the burner to the lump or oil-'rcservoir; and also in inserting a feed-tube through lone side of the chamber, and connecting with the oil-reservoir, by means of which the lamp or olreservoir can be filled from the outside without nnscrewing the burner or removing the chimney; and also in inserting a well-tube, open at both ends, connected at its upper end with the collar of the lamp, and extending downward nearly to the bottom of the lamp or oil-reservoir, so as to exclude the oil from contact with the air vor wick, except within thc welltnbe e To enable others skilled in the crt to make and use my invention, I willproceed to describe the construction andloperation thereof.

I make the chamber ef tin, copper, brass, or other suitable motel, or. of glass; The form may be varied to suit the uses for which it is required, but for ordinary lamp use Imalcc it a circular disk, surrounding the wicktube, and extending outward-fur enough to cover. in goed part the tcpl of thelamp` or oil-reservoir,t o protect the oil from the-heat of the dame. The upper and under surfaces are joined at the circumference and made tight, and are tightly secured to a tube, c, passing vertically through the centre of the chamber. This central tube e is made of sucient diameter to allow the wick to tlurnfreely init, and has a screw, f, upon the outside of the lower end, by means of which itis secured to the collar of the lamp or' oil-reservoir, and projects below the chamber sniciently for that purpose. The'upper end of the tube has a screw upon the inside to receive I' the burner. The chamber may also be made with and part of the collar, having the burner screwed into the l upper end of the central tube, as above' described, or. it may be permanently attached to thevburner, and screwed into the. collar, as before mentioned. Other modes of attachment may be used, but I deem the screwpreferahle.

' The inside vertical depth of the chamber, next the. central tube c, lshould be threefourthspart of an inch, more or less, for an ordinary lamp, and of like proportion for other uses. The upper and Aunder surfaces of the chamber maybe made convex, concave, or of other desired form, and they shouldbe highly finished, so as to reflect heat and light. Upon one side of the upper surface of the chamber is an aperture, d, closed with a screwc'ap for lling the chamber with water for other non-conductor of hcnt. Through the chamber, upon the opposite side, isV inserted ra. feed-tube, e, for supplying-the lamp or reservoir with oil. The upper end'of this feedtube copens through the upper surface of the chamber, and is there closed byscrew-cap. The lowerl end opens into the oil-reservoir, through the central tube of the chamber. The chamber thus made can be successfully adapted to any lamp. The well-tube, made cylindrical in preference, is connected with the collar of the lamp cr other burner, and extendsdownward nearly to the bottom of the oil-reservoir, or it may extend to i thc bottom, and have perforationsin or near its lower 'end for the passage of the oil'to the inside of it.

l i Illustration. i

In the drawings annexed-- Y A,

Figure 1 represents a vertical section` of lthe ehamhcrand attachments. Iie'tter Aa indicates the burner screwed into the centi-al tube c. The chamber-space is represented b 1i.A lThe aperture for filling the chsm t bcr is indicated byid, the feedftube, for filling the lamp, by e, andV the' serewat the lower end of the central tube byff, and the -well-tube by g.

Figure 2 is a plane'horzontal section of the chamber, in which the letters-indicatethe same purtsrcspectivelyas in 1. I I

' Operation.. i

The non-conducting chamber is designed to prevent the passage of heat from the dame to the'oil inv,the

reservoir, and being interposed, :tsit is, between the dameV and the oil-reservoir, having bright surfaces, and

surrounding the wick -with body of non-conductingmntter, it both absorbs und reflects lient, which is in turn given oli' from therelatiy'ely large radiutingsurfnce to the nir surrounding it; hence, by means ofthe chamber,

the' oil is kept cool, no tia-por is generatcdinthc reservoir to escape, unconsumed, no odors are difl'usie through the room, und no explosion of the lamp or reservoir can occur, -for' the 'reason that the cause of explosionsthe inlluinmable vapor of volatile `oilsis not present.

' By means of the olmmbenkerosens'uhd the more volniile-'produets'i` ptioleumlcon he burned with safety onneconomg'and more light,`a.nd of better qulty, cnn' be obtained from o given quantity ofoil -than cnn be obtained without its use, because' the ifu'pors are consumed in the wick,4 together witlrthe denser portions of theoil.'- -f-f, The feed-tube lthrough the chamber is designed to ll the larp or oil-reservoir from the outside, without unscrewing the burner or even removing the chimney. By means of this deyice {kerosene-lamp can be llled ns conveniently as was the old'fushioned oil-lamp. The well-tube servesto exclude the nir from contact with the oil, except within the tujbe, so that if'by occident or careless handling lire should becougmunicated tothe oil, it cannot spread, but will beconfined within the tube, und will burn feebly forwant of nir, as in o well, ond' 'can be extinguished as readily as can o burning candle.

What I claim as my invention, and desire to secure by Letters Patent, isl- The burner, constructed and arranged substantially es set forth und described, that is to say, with its waterchamber interposed between the llame and lump, provided. with oil and inter-feeding (duets, and a. well-tube, through which the wick descends to the oil. i

' OVETTE BOYN TON.

Witnesses.

Cms; SEARS, JOHN ALLEN. 

